Optimize isFinite and isNaN.

src/scopes.cc

Index: src/scopes.cc
diff --git a/src/scopes.cc b/src/scopes.cc
index 15634d09514d47daa128dc24f9d3ecf05e15587d..b2958db60fbc20d5d7689bfcb4aca8adf50ca2c6 100644
--- a/src/scopes.cc
+++ b/src/scopes.cc
@@ -331,35 +331,6 @@ void Scope::Initialize(bool inside_with) {
 }
 
 
-Scope* Scope::FinalizeBlockScope() {
-  ASSERT(is_block_scope());
-  ASSERT(temps_.is_empty());
-  ASSERT(params_.is_empty());
-
-  if (num_var_or_const() > 0) return this;
-
-  // Remove this scope from outer scope.
-  for (int i = 0; i < outer_scope_->inner_scopes_.length(); i++) {
-    if (outer_scope_->inner_scopes_[i] == this) {
-      outer_scope_->inner_scopes_.Remove(i);
-      break;
-    }
-  }
-
-  // Reparent inner scopes.
-  for (int i = 0; i < inner_scopes_.length(); i++) {
-    outer_scope()->AddInnerScope(inner_scopes_[i]);
-  }
-
-  // Move unresolved variables
-  for (int i = 0; i < unresolved_.length(); i++) {
-    outer_scope()->unresolved_.Add(unresolved_[i]);
-  }
-
-  return NULL;
-}
-
-
 Variable* Scope::LocalLookup(Handle<String> name) {
   Variable* result = variables_.Lookup(name);
   if (result != NULL || scope_info_.is_null()) {